The police ____the murderer everywhere when he suddenly appeared in a theatre.
A.is searching for |
B.were searching for |
C.are searching for |
D.were searching |
John has two brothers, but either ____out of work now.
A.are |
B.is |
C.has |
D.have |
The Chinese people _____hard-working and brave.
A.are |
B.is |
C.has been |
D.are being |
Nobody ____to smoke in the cinema.
A.allows |
B.allow |
C.is allowed |
D.are allowed |
The air in big cities _____very dirty by factories.
A.are often made |
B.is often made |
C.have often made |
D.has often made |
All but one ____here just now.
A.is |
B.was |
C.has been |
D.were |